摘要
利用GPS技术测量点的平面位置可获得较高精度,但不能直接得到地面点的正常高,只能得到大地高。作者探讨了GPS高程拟合的精度与起算点的分布、整体拟合和分区拟合方法的选择、GPS高程拟合精度的分析等方法并提出了自己的见解,且通过铁岭县C级GPS网的高程拟合实例,介绍了该方法的具体应用。
Measurement points using GPS technology can obtain higher accuracy flat position, but can not directly get the normalheight, only get ellipsoidal height. To investigate the accuracy of GPS Elevation Fitting the distribution with the known point, the over-all fitting and partition fitting method of choice, GPS elevation fitting accuracy analysis methods such as put forward their own views,and through C - class GPS Network of Tieling elevation fitting example, the above method is introduced specific application.
出处
《测绘与空间地理信息》
2017年第4期92-95,共4页
Geomatics & Spatial Information Technology
关键词
大地高
正常高
高程异常
GPS水准点
高程拟合
ellipsoidal height
normal height
abnormal height
GPS leveling point
height interpolation
